Courtney Adair, a seasonal naturalist at Good Earth State Park with South Dakota Game Fish and Parks, scans the trees for birds while hiking with members of the Sioux Falls Bird Club during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader

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Courtney Adair, a seasonal naturalist at Good Earth State Park with South Dakota Game Fish and Parks, hikes with Sioux Falls Bird Club members, Mick Zerr, left, and Todd Jensen, right, during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader

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Courtney Adair, a seasonal naturalist at Good Earth State Park with South Dakota Game Fish and Parks, talks with Sioux Falls Bird Club members, Mick Zerr, right, and Todd Jensen, left, during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader

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Courtney Adair, a seasonal naturalist at Good Earth State Park with South Dakota Game Fish and Parks, talks with members of the Sioux Falls Bird Club during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader

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Sioux Falls Bird Club members, Todd Jensen, left, and Mick Zerr look out over the Big Sioux River during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader

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Courtney Adair, a seasonal naturalist at Good Earth State Park with South Dakota Game Fish and Parks, checks out a type of plant while hiking with members of the Sioux Falls Bird Club during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader

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Courtney Adair, a seasonal naturalist at Good Earth State Park with South Dakota Game Fish and Parks, talks about a type of plant while hiking with members of the Sioux Falls Bird Club during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader

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Courtney Adair, a seasonal naturalist at Good Earth State Park with South Dakota Game Fish and Parks, scans the trees for birds while hiking with members of the Sioux Falls Bird Club during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader

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Courtney Adair, a seasonal naturalist at Good Earth State Park with South Dakota Game Fish and Parks, and Sioux Falls Bird Club member, Mick Zerr listen to a bird during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader

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Sioux Falls Bird Club member Todd Jensen points in the direction of a bird during a Birding Blitz hike on Sunday, Aug. 24, 2014, at Good Earth State Park southeast of Sioux Falls. Joe Ahlquist / Argus Leader